<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域-->
      <div class="avatar_box">
        <img src="../assets/logo.png" />
      </div>
      <!--登录表单区-->
      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginFormRules"
        class="login_form"
      >
        <!--用户名-->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user"
          ></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input
            type="password"
            v-model="loginForm.password"
            prefix-icon="el-icon-lock"
          ></el-input>
        </el-form-item>
        <!--按钮区域-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>

export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },

      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 8, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 8, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm: function () {
      this.$refs.loginForm.resetFields()
    },
    login: function () {
      this.$refs.loginForm.validate(async valid => {
        if (!valid) return
        var { data: res } = await this.$http.post('/login', this.loginForm)
        console.log(res)
        if (res.meta.status === 200) {
          this.$message.success('登录成功')
          window.sessionStorage.token = res.data.token
          this.$router.push('/home')
        }

        if (res.meta.status === 400) this.$message.error('登陆失败')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    .avatar_box {
      width: 130px;
      height: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      background-color: #eee;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
    .login_form {
      position: absolute;
      bottom: 0;
      width: 100%;
      padding: 0 20px;
      box-sizing: border-box;
    }
    .btns {
      display: flex;
      justify-content: flex-end;
    }
  }
}
</style>
